User Interface Design: 
 Why Prototyping matters?
A special look at balsamiq Mockups
    Patrick NDJIENTCHEU aka Pattchen
...
Agenda
• What is User Interface Design ?
• What about usability ?
• Usability engineering is an iterative process
• The pl...
What is User Interface Design?

• It’s just about designing usable user 
  interfaces.

• It’s all about usability.
What about usability?
•   Learnability
•   Efficiency
•   Memorability
•   Errors
•   Satisfaction
Usability in practice –
          some real world examples

Google : efficient, easy and fun to use




Would you have des...
Usability in practice –
         some real world examples
The World’s Worst website: no comments…
Usability is an iterative process


     Design       Implement



           Evaluate
Prototyping in usability engineering


Design        Implement   > In early days, you
                          prototype....
And the winner is...balsamiq Mockups
• Feels like you are drawing, but it's digital.

• 75 pre‐built controls to choose fr...
balsamiq Mockups ‐ examples




* koutchoumi.com is going live on December 1st, 2009.
Balsamiq Mockups ‐ demo
• Stop talking, it’s demo time ☺
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User Interface Design - Why Prototyping matters? A special look at balsamiq Mockups

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This presentation unveils the importance of prototyping in User Interface Design. It shows how far balsamiq Mockups is good for building UI prototypes quickly.

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User Interface Design - Why Prototyping matters? A special look at balsamiq Mockups

  1. 1. User Interface Design:  Why Prototyping matters? A special look at balsamiq Mockups Patrick NDJIENTCHEU aka Pattchen Software Engineer, tchen_pat@yahoo.fr November 07, 2009 – Barcamp Cameroon
  2. 2. Agenda • What is User Interface Design ? • What about usability ? • Usability engineering is an iterative process • The place and importance of prototyping in  usability engineering • And the winner is...balsamiq Mockups!
  3. 3. What is User Interface Design? • It’s just about designing usable user  interfaces. • It’s all about usability.
  4. 4. What about usability? • Learnability • Efficiency • Memorability • Errors • Satisfaction
  5. 5. Usability in practice – some real world examples Google : efficient, easy and fun to use Would you have designed it this way? ☺
  6. 6. Usability in practice – some real world examples The World’s Worst website: no comments…
  7. 7. Usability is an iterative process Design Implement Evaluate
  8. 8. Prototyping in usability engineering Design Implement > In early days, you prototype. > Cheap prototypes reduces the cost of iterations. > It’s important to choose a  Evaluate good prototyping tool.
  9. 9. And the winner is...balsamiq Mockups • Feels like you are drawing, but it's digital. • 75 pre‐built controls to choose from means you can  design anything. • It’s easy to use and very fast. • And it’s definitevely fun to use ☺ • Get it at :  http://www.balsamiq.com/products/mockups
  10. 10. balsamiq Mockups ‐ examples * koutchoumi.com is going live on December 1st, 2009.
  11. 11. Balsamiq Mockups ‐ demo • Stop talking, it’s demo time ☺

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